Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 203 [Rate centres in NPA 203] [Dial plan for NPA 203]

NXX: 779

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
203-779 A Madison CT HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 0 Madison CT HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 1 Madison CT HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 2 Madison CT HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 3 Madison CT HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 4 Madison CT HRFRCT0370Z  2706 CHOICE ONE COMMUNICATIONS, INC. - CT 920      
203-779 5 Madison CT HRFRCTCR3MD  318J COMCAST IP PHONE LLC 920   2004-12-18   
203-779 6 Madison CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2011-05-26   
203-779 7 Madison CT SMFRCTPU4MD  4800 LEVEL 3 COMMUNICATIONS, LLC - CT 920   2012-06-23   
203-779 8 Madison CT SMFRCTATXMD  3083 PAETEC COMMUNICATIONS, LLC - CT 920   2009-03-30   
203-779 9 Madison CT WLFRCTXB9MD  6664 SPRINT SPECTRUM, L.P. 920   2002-12-23   

Last updated: Fri, 10 Sep 2021 12:38:21 UTC

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